秦岭地区“柞水系”地层的时代問題是地质界长期以来爭論的重大問題之一。由于这套地层褶皺剧烈、变质較深、长期无化石依据以及与上下地层的接触关系不清,其时代問題长期未得解决。而这个問題的解决对于解释秦岭及其邻区大地构造特征和研究該区地质发育史以及进一步指导普查找矿 The era of the “Zhashui” stratum in the Qinling area is one of the major issues that have long been debated by the geological community. Because of the intense folds, deep metamorphism, long-term fossilless basis and unclear contact with the upper and lower strata, the issue of the times has not been solved for a long time. The solution to this problem is to explain the tectonic features of the tectonics in Qinling and its adjacent areas and to study the geological development history of the area and to further guide the general prospecting